Founded in 1899, ASLA is the national professional association for landscape architects, representing more than 15,000 members in 49 professional chapters and 72 student chapters. Members of the Society use "ASLA" after their names to denote membership and their commitment to the highest ethical standards of the profession. Landscape architects lead the stewardship, planning and design of our built and natural environments; the Society’s mission is to advance landscape architecture through advocacy, communication, education and fellowship.